itunes isnt able to find the songs on the path that was defined before. there is a function in itunes to search for all available data on your disks ans put it into the library. this could solve your problem - if the songs can be found somewhere on your disk(s).
(hide) Do you keep losing on timeouts? Paying members can activate Automatic Vacation to automatically set vacation days when they would timeout. (pauloaguia) (show all tips)